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SAE-AISI 5155 Steel vs. Low-oxygen Zirconium

SAE-AISI 5155 steel belongs to the iron alloys classification, while low-oxygen zirconium belongs to the otherwise unclassified metals. There are 20 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 5155 steel and the bottom bar is low-oxygen zirconium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
98
Elongation at Break, % 21
23
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 73
37
Tensile Strength: Ultimate (UTS), MPa 620
330
Tensile Strength: Yield (Proof), MPa 380
270

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Specific Heat Capacity, J/kg-K 470
270
Thermal Conductivity, W/m-K 49
22
Thermal Expansion, µm/m-K 12
5.7

Otherwise Unclassified Properties

Density, g/cm3 7.8
6.7
Embodied Water, L/kg 49
450

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
70
Resilience: Unit (Modulus of Resilience), kJ/m3 380
370
Stiffness to Weight: Axial, points 13
8.1
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 22
14
Strength to Weight: Bending, points 21
16
Thermal Diffusivity, mm2/s 13
12
Thermal Shock Resistance, points 20
42

Alloy Composition

Carbon (C), % 0.51 to 0.59
0 to 0.050
Chromium (Cr), % 0.7 to 0.9
0 to 0.2
Hafnium (Hf), % 0
0 to 4.5
Hydrogen (H), % 0
0 to 0.0050
Iron (Fe), % 97.2 to 97.9
0 to 0.2
Manganese (Mn), % 0.7 to 0.9
0
Nitrogen (N), % 0
0 to 0.025
Oxygen (O), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0.15 to 0.35
0
Sulfur (S), % 0 to 0.040
0
Zirconium (Zr), % 0
94.7 to 100